John wilkinson



(No Model.) J. WILKINSON.

STOPPER FOR BOTTLES.

Patented Sept. 6, 1881.

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* UNITED STATES PATENT OFFICE.

JOHN WILKINSON, OF SWIIVTON, COUNTY OF YORK, ENGLAND.

STOPPER FOR BOTTLES.

SPECIFICATION forming part of Letters Patent No. 246,649, dated September 6, 1881.

Application filed May 19, 1881. (No model.)

To all whom it may concern Be it known that I, JOHN WILKINSON, a citizen of England, residing at Swinton, in the countyof York, England, haveinvented a new and useful Improved Stopper for Bottles, of which the following is a specification.

My invention relates to the stoppering of bottles by means of a stopper, which, when inserted in the mouth of the bottle and turned partly round, is held firmly in its place and makes a tight closure of the bottle, as I will explain, referring to the accompanying drawlugs.

Figure l is a vertical section of the upper end of a bottle with the improved stopper in place closing it. Fig. 2 is a plan of the bottlemouth; and Fig. 3 is an external elevation of the stopper, shown separately.

The boxtle-mouth is made, as shown, with a shoulder at a, an annular recess, b, and two vertical grooves, 0, extending down fromthe mouth of the bottle to the recess. The stopper has on its exterior a circular groove,in which is held a ring of caoutchonc d, and immediately above this groove it has two projecting wings, e c. It is internally hollow, and has cemented into its hollow a piece of cork, f, which projects a little beyond the end of the stopper, and fits the interior of the bottle-neck below the shoulder a.

In stoppering the bottle the stopper is inserted in the bottle-mouth with its two Wings 6 c passing down the vertical grooves c and its corkfentering the interior of the shoulder a. When the stopper is pressed home, so that the caoutchouc ring d is squeezed against the shoulder a, the stopper is turned partly round, and itsavings e e are thus brought under the upper shoulder of the recess 1), and the stopper is thus held firmly in its place, the corkf and the caoutchouc ring d making a tight closure.

The external fiange,g, on the stopper may be dispensed with when it is not desired to cover the upper lip of the bottle.

Having thus described the nature of my invention and the best means I know of carrying it out in practice, I claim- 1. A stopper having projecting wings e e, a caoutchouc:ring,d,and acork, f, substantially as herein described.

2. The combination of a stopper having projecting wings c e, caoutchouc ring (I, and cork f with a bottle mouth having an internal shoulder, a, an annular recess, b, and vertical grooves c a, substantially as and for the pur- 5 poses herein set forth.

In testimony whereofI have signed my name to this specification, in the presence oftwosubscribing witnesses, this 25th day of April, A.

JOHN WILKINSON. Witnesses:

H. C. HoPKINs, M10. P. M. MILLARD. 

